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Tube Fittings
9
All dimensions are in millimeters unless otherwise specified and only for reference subject to change.
ISO/NPT
Pipe
Size
SS316 and Carbon Steel
Brass
Male
pisg bar
Female
pisg bar
14,000
10,000
8,300
8,000
7,800
7,500
5,300
6,200
5,100
4,000
965
689
572
551
537
517
365
427
351
276
6,600
6,400
6,500
5,200
4,800
4,600
4,400
5,000
4,500
3,900
455
441
448
358
331
317
303
345
310
269
7,400
5,000
4,100
4,000
3,900
3,700
2,600
3,100
2,500
2,000
510
345
282
275
269
255
179
214
172
138
3,300
3,200
3,200
2,600
2,400
2,300
2,200
2,500
2,200
1,900
227
220
220
179
165
158
152
172
152
131
Male
pisg bar
Female
pisg bar
S value
20ksi
10ksi
Applicable to Dk-Lok thread designator: N and R
Table 16. Tapered Pipe Thread Pressure Ratings
Care must be taken as fitting with elastomer O-ring seal
may have lower temperature rating.
Kalrez
Ⓡ
: TM Dupont
Pressure Equivalents :
1 bar = 100 kPa = 14.503 psi 1 kPa = 0.01 bar = 0.145 psi
1 psi = 0.069 bar = 6.89 kPa 1 kg/cm
2
= 0.98 bar = 14.22 psi
⦁
⦁
Dk-Lok Pipe End Pressure Rating
⦁
⦁
SAE Straight Thread
Parallel Pipe Thread
E